Non-equispaced Fourier Transform Vs. Polynomial-Based Metal Artifact Reduction in Computed Tomography

Bärbel Kratz, Tobias Knopp, Jan Müller, May Oehler, Thorsten M. Buzug

Abstract

We propose a method, which treats metal artifact reduction in CT by sinogram restoration as a problem of scattered data interpolation. Corrupted sinogram entries are discarded and replaced with artificially generated values. The presented interpolation algorithm is based on the 2D non-equispaced fast Fourier transform (NFFT). Results are compared to two common polynomial interpolation schemes.

Original languageEnglish
Title of host publicationBildverarbeitung für die Medizin 2008
Number of pages4
PublisherSpringer Berlin Heidelberg
Publication date01.12.2008
Pages21-25
ISBN (Print)978-3-540-78639-9
ISBN (Electronic)978-3-540-78640-5
DOIs
Publication statusPublished - 01.12.2008
EventWorkshop on Bildverarbeitung fur die Medizin 2008 - Berlin, Germany
Duration: 06.04.200808.04.2008

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